Okla. Stat. tit. 85A, § 85A-18

A. No hospital, physician, or other health care provider shall

bill or attempt to collect any fee or any portion of a fee for

services rendered to an employee due to a work-related injury or

report to any credit-reporting agency any failure of the employee to

make the payment, when a claim for compensation has been filed under

this act and the hospital, physician, or health care provider has

received actual notice given in writing by the employee or the

employee's representative. Actual notice shall be deemed received

by the hospital, physician, or health care provider five (5) days

after mailing by certified mail or sending by facsimile, electronic

mail or other electronic means with receipt of confirmation by the

employee or his or her representative to the hospital, physician, or

health care provider.

B. The notice shall include:

1. The name of the employer;

2. The name of the insurer, if known;

3. The name of the employee receiving the services;

4. The general nature of the injury, if known; and

5. Where a claim has been filed, the claim number, if known.

C. When an injury or bill is found to be noncompensable under

this act, the hospital, physician, or other health care provider

shall be entitled to pursue the employee for any unpaid portion of

the fee or other charges for authorized services provided to the

employee. Any applicable statute of limitations for an action for

the fees or other charges shall be tolled from the time notice is

given to the hospital, physician, or other health care provider

until a determination of noncompensability in regard to the injury

which is the basis of the services is made, or if there is an

appeal, until a final determination of noncompensability is rendered

and all appeal deadlines have passed.

D. This section shall not void, modify, or amend any other

section or subsection of this act.

E. An order by the Workers' Compensation Commission under this

section shall stay all proceedings for collection.